alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (Ursnif Inject Domain)"; flow:from_server,established; tls_cert_subject; content:"CN=opzioni.at"; nocase; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category CURRENT_EVENTS; classtype:trojan-activity; sid:2026615; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2018_11_15, malware_family ursnif, performance_impact Low, updated_at 2018_11_15;)

Added 2019-09-10 20:12:59 UTC


alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Observed Malicious SSL Cert (Ursnif Inject Domain)"; flow:from_server,established; tls_cert_subject; content:"CN=opzioni.at"; nocase; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category CURRENT_EVENTS; classtype:trojan-activity; sid:2026615; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2018_11_15, malware_family ursnif, performance_impact Low, updated_at 2018_11_15;)

Added 2018-11-15 19:01:28 UTC


Topic revision: r1 - 2019-09-11 - TWikiGuest
 
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